--- a/farolluz/vulnerability.py	Fri Oct 24 17:06:34 2014 +0200
+++ b/farolluz/vulnerability.py	Mon Oct 27 11:23:33 2014 +0100
@@ -136,15 +136,10 @@
                 if groupid in subelem._groupids:
                     yield subelem
 
-    def isMentioningGroupId(self, groupids):
-        """ Make sure you call this with a list (not a generator or a tuple)
-        when wished """
-        if not isinstance(groupids, list):
-            groupids = [groupids]
-        for groupid in groupids:
-            for _ in self.mentionsGroupId(groupid):
-                # We only need to know if the generator yield at least one elem.
-                return True
+    def isMentioningGroupId(self, groupid):
+        for _ in self.mentionsGroupId(groupid):
+            # We only need to know if the generator yield at least one elem.
+            return True
         return False
 
     def validate(self, productids, groupids):